baber/WOPTO huggingface dataset:
Patent KR-20100051873-A (KR)
Title: Method of producing tertiary amyl ethyl ether
Inventor: BOYER CHRISTOPHER C
IPC: C07C41/06
Filed: 2008-08-25
Abstract: A process for the production of tertiary ethers, including: feeding a hydrocarbon stream comprising isoolefins and propionitrile to a distillation column reactor system containing at least one etherification reaction zone; feeding a C2 to C6 monoalcohol or mixture thereof to the distillation column reactor; concurrently in the distillation column reactor system: reacting a portion of the isoolefins with a portion of the alcohols to form a tertiary ether; and separating the tertiary ether from unreacted isoolefins; withdrawing the tertiary ether and propionitrile from the distillation column reactor system as a bottoms; withdrawing the unreacted isoolefins from the distillation column reactor system as an overheads; and operating the distillation column reactor system such that the etherification reaction zone is substantially free of propionitrile.
Patent KR-20100085958-A (KR)
Title: Hemi-prosthesis
Inventor: MAESTRETTI GIANLUCA
IPC: A61M39/22
Filed: 2008-10-16
Abstract: An intervertebral disc prosthesis (10) for total, partial, or nuclear replacement of an intervertebral disc space includes an anchoring member (20) and a cushioning member. The anchoring member is sized and configured to engage an inferior vertebra. The cushioning member is sized and configured to directly contact an endplate of the superior vertebra and to couple to the anchoring member, which is secured to the inferior vertebra. Thus, the prosthesis includes a single endplate for contacting the inferior vertebra and a cushioning member for directly contacting the superior vertebra. In use, the prosthesis facilitates movement between the vertebral bodies by direct articulation via sliding or articulation between the vertebral bodies and the prosthesis, indirect articulation via deformation (e.g., compression) of the prosthesis, or a combination thereof.
Patent KR-20100087717-A (KR)
Inventor: MILLER DAVID SCOTT
IPC: E21B43/24
Filed: 2008-10-13
Abstract: 탄화수소 함유 지층을 처리하기 위한 방법이 지층의 제 1 구역에 위치된 하나 이상의 열원으로부터 지층의 제 1 구역에 열 입력을 제공하는 단계를 포함한다.     유체가 제 1 구역의 중심에 또는 이 중심 부근에 위치된 생성 웰을 통해 제 1 구역으로부터 생성된다.     열원은, 제 1 구역에서의 지층의 용적당 평균 열 입력이 생성 웰로부터의 거리와 함께 증가하도록 구성된다.
Patent KR-20100114508-A (KR)
Inventor: PESSIN ZACHARY
IPC: G06Q20/00
Filed: 2003-02-14
Abstract: 본 발명에 따른 방법들, 시스템들 및 제조 물품들은 네트워크(22)를 통해 금융 거래들을 수행하기 위해 제공된다. 사용자(10)는 당사자들 각각이 상기 네트워크(22) 상의 데이터 처리 시스템에 대응하는 다수의 당사자들 중 적어도 하나의 당사자와 적어도 한 번의 금융 거래를 수행할 것을 요구한다. 상기 금융 거래에 관한 실시간 금융 정보는 획득되고, 상기 사용자는 적어도 하나의 당사자와의 금융 거래가 금융 거래의 수행 이전에 이루어질 수 있다는 것을 테스트 및 확인할 수 있다.
Patent KR-20100112607-A (KR)
Inventor: KARLSSON ANDERS
IPC: B03C3/68
Filed: 2008-12-16
Abstract: 본 발명은 정전 집진기(ESP)의 작동을 제어하기 위한 방법 또는 디바이스에 관한 것이다.  ESP는 연소 프로세스에 의해 발생된 프로세스 가스로부터 먼지 입자를 제거하는데 사용된다.  표시기 신호는 일반적으로 온도 센서에 의해 발생되고, 이 신호는 연소 프로세스에 공급된 연소 공기의 온도를 표시한다.  ESP는 표시기 신호에 의존하는 방식으로 작동된다.  이에 의해 역전리 효과가 큰 정도로 회피될 수 있다.
Patent KR-20100132489-A (KR)
Inventor: CLOZEL MARTINE
IPC: A61K31/216
Filed: 2009-02-19
Abstract: 본 발명은 화학식 (I)의 엔도텔린 수용체 길항물질과 파클리탁셀의 조합(combination), 그리고 특히, 난소암의 치료에서 동시에, 개별적으로 또는 장기간 동안 치료적 용도를 위한 이러한 조합에 관계한다. 
[화학식 I]
Patent KR-20100106608-A (KR)
Inventor: SU JIE
IPC: H01L21/00
Filed: 2009-01-23
Abstract: 화학 기상 증착 및/또는 수소화물 기상 애피택시(HVPE)를 이용하는 클러스터 툴에 대한 기판 프로세싱 파라미터를 모니터하고 제어하기 위한 방법 및 장치가 제공된다.  일 실시예에서, 유기 금속 화학 기상 증착(MOCVD) 프로세스가 프로세싱 챔버 내에서 다수의 기판상에 3족 질화물을 증착하기 위해 사용된다.  폐쇄 루프 제어 시스템은 3족 질화물 막 성장 속도의 인-시츄 모니터링을 실행하면 목표된 성장 속도를 유지하기 위한 필요에 따라 막 성장 파라미터를 조정한다.  다른 실시예에서는 폐쇄 루프 제어 시스템이 하나 또는 그보다 많은 필름 증착 시스템을 위한 다중 프로세싱 챔버에 대한 막 성장 파라미터를 인-시츄로 모니터한다.
Patent KR-20100122107-A (KR)
Title: White-box implementation
Inventor: MICHIELS WILHELMUS P A J
IPC: G06F7/72
Filed: 2009-02-27
Abstract: A system for enabling a device to compute an outcome of an exponentiation Cx having a base C and/or an exponent x, the system comprising means for establishing a plurality of values λi; means for establishing a plurality of values ωi satisfying ωi=Cλi; means for establishing a plurality of values φi satisfying that the sum of the values λiφi equals x; and an output for providing the device with the plurality of values φi. A device computes an outcome of the exponentiation Cx. The device comprises means for computing a product of the values ωi to the power of φi. The device is arranged for using the product as a result of the exponentiation Cx.
Patent KR-20110002051-A (KR)
Inventor: SAMPATH HEMANTH
IPC: H04J11/00
Filed: 2009-03-23
Abstract: 실시예들에서, 무선 수신기는 펌웨어에 의해 제어되는 하드웨어-기반 고속 푸리에 변환(FFT) 엔진을 사용한다.  FFT 엔진은 작업 목록에 저장된 작업들을 실행시킨다.  각각의 작업은 신호의 상이한 일부분, 예컨대 하나 이상의 직교 주파수 분할 변조(OFDM) 심볼들과 연관된다.  각각의 작업은, 상기 엔진이 상기 신호의 상기 연관된 일부분, 상기 일부분에 대한 포인터, 그리고 출력을 저장하기 위한 메모리에 대한 다른 포인터를 프로세싱하도록 구성하기 위해 FFT 엔진을 위한 구성 정보를 포함할 수 있다.  상기 작업 목록은 펌웨어 제어될 수 있다.  작업 목록으로부터 작업들을 판독하여 실행시키기 위해 펌웨어에 의해 구동되는 구성가능한 하드웨어 파트로 상기 FFT를 분할하는 것은 FFT 프로세스의 속도를 높일 수 있고, 더욱 유연성 있게 한다.  서브-캐리어들을 그들의 에너지들에 따라 정렬하기 위한 하드웨어 비콘 정렬기가 상기 FFT 엔진에 커플링될 수 있다.
Patent KR-20110031912-A (KR)
Inventor: ENENKEL BARBARA
IPC: C12N5/10
Filed: 2009-07-22
Abstract: 본 발명은 신규 조절 요소, 및 관련된 벡터 및 세포에 관한 것이다.  또한, 본 발명은 클로닝된 유전자와 같은 핵산으로부터 폴리펩타이드의 발현을 개선하는 방법 및 상기 신규 조절 요소를 사용한 숙주 세포에서의 다양한 폴리펩타이드의 생성에 관한 것이다.  따라서, 본 발명은 상기 신규 조절 요소의 격리자로서의 용도, 유전자 치료에서의 용도, 또는 숙주 세포주 개선을 위한 용도에 관한 것이다.
Patent KR-20120080425-A (KR)
Title: Soundproof wall
Inventor: YOON KWANG SEOK
IPC: E01F8/00
Filed: 2011-01-07
Abstract: PURPOSE: A soundproof wall is provided to prevent the transferring of noise by decreasing the reflection angle for noise. CONSTITUTION: A soundproof wall comprise a pair of vertical members(100), a plurality of mounting frames(200), a soundproof plate(300), and a fixing member(400). The pair of vertical members is installed with determined interval and inserted in the opening of an H-beam. The soundproof plate is inserted in a mounting space and coupled. The soundproof plate blocks and absorbs noise. The fixing member fixes the both sides of the soundproof plate.
Patent KR-20120080889-A (KR)
Title: Layout of semiconductor device
Inventor: KIM DONG HOON
IPC: H01L27/04
Filed: 2011-01-10
Abstract: PURPOSE: A layout of a semiconductor device is provided to improve process margin by simplifying an active region pattern through an active region with a box type. CONSTITUTION: A plurality of units include a gate(210) and are arranged in one active region(200). A gate pattern for isolating a device is arranged between units. A junction implant region is formed in the active region. Both ends of the gate are formed in a boundary of an edge of the active region.
Patent KR-20120086880-A (KR)
Title: Power management terminal
Inventor: YI ZEONG WOO
IPC: G08C17/02
Filed: 2011-01-27
Abstract: PURPOSE: A power management terminating device is provided to easily analyze power usage amount of an electronic device and to intellectually control the power usage amount. CONSTITUTION: A power management terminating device(20) comprises a communications unit(21), a power measurement unit(22), a power data generating unit(23), and a control data generating unit(24). The communications unit communicates with a user terminal. The power measurement unit is connected to an electronic device and measures power usage amount of the electronic device. The power data generating unit creates power data by analyzing data measured through the power measurement unit and provides the created power data to the user terminal. The control data generating unit creates a control data by analyzing the created power data and controls operation of the electronic device according to the control data.
Patent KR-20120097447-A (KR)
Title: Nothing piping front line cable connecter
Inventor: LEE KI SIK
IPC: H02G3/30
Filed: 2011-01-28
Abstract: PURPOSE: A sable support connector for an exposed wire of a non-pipe electric line is provided to secure electrical and mechanical safety. CONSTITUTION: A fixing unit is fixed to a wall. A fixing hole is formed in the center of the fixing unit. A coupling unit for fixing the wall is combined with the fixing hole of the fixing unit. The fixing unit and a support unit are formed with a band type. A coupling hole with a protrusion is formed on the upper side of the fixing unit.
Patent KR-20110098648-A (KR)
Inventor: MATSUI HIROKAZU
IPC: C08L67/00
Filed: 2011-02-23
Abstract: 본 발명은 히드록실기 및 산소음이온기 중에서 선택되는 산소-함유기를 갖는 폴리술폰 (A), 불소 수지 (B), 및 폴리술폰 (A) 및 불소 수지 (B) 이외의 열가소성 수지 (C) 를 포함하는 열가소성 수지 조성물을 제공한다.     상기 조성물은 높은 슬라이딩성을 갖는다.     상기 조성물을 성형함으로써, 슬라이딩성이 높은 성형품을 수득할 수 있다.
Patent KR-20120101842-A (KR)
Title: Payment method and apparatus
Inventor: KIM SUK PYO
IPC: G06Q20/40
Filed: 2011-03-07
Abstract: PURPOSE: A universal simple payment method and a device thereof are provided to prevent personal information spill by preventing the online transmission of personal information about a user in a payment process. CONSTITUTION: A client makes a request for joining a service by connecting to a card company server(S200). The card company server requests information registration for joining the service to the client(S205). The client registers identification information and card information and mobile phone number for payment(S210). The mobile phone number is transmitted to a mobile communication company server corresponding to the mobile phone number in order to request identification(S215). The mobile communication company server transmits an identification result to the card company server(S220). [Reference numerals] (100) Member store server; (110) Card company server; (120) Mobile communication company server; (130) Customer; (S200) Request for joining a convenient payment service; (S205) Request for information registration; (S210) Information registration(a resident registration number, a CVC, a password, a mobile phone number); (S215) Identification request; (S220) Identification result; (S225) Transmitting a mobile phone authentication number; (S230) Inputting a mobile phone authentication number; (S235) Authentication number confirmation and card authentication; (S240) Generating an intrinsic value by applying predetermined algorithm to personal identification information; (S245) Storing a mobile phone number and a card number by mapping the same; (S250) Notifying a registration result
Patent KR-20120103321-A (KR)
Title: Manufacturing method of inorganic antibiotics
Inventor: LEE HUK HEE
IPC: A01N25/08
Filed: 2011-03-10
Abstract: PURPOSE: A method for manufacturing inorganic antibacterial agent is provided to enhance adsorption and substitution rate of antibacterial metal ions and to protect water quality environment. CONSTITUTION: A method for manufacturing inorganic antibacterial agent comprises: a step of dissolving aluminum sulfate in water to prepare an aluminum sulfate solution; a step of mixing the calcium salt with water to prepare slurry; a step of mixing the aluminum sulfate solution and slurry to prepare a mixture solution; a step of heating the mixture solution at 30-150 Deg. C.; and a step of adsorbing or substituting an antibacterial metal ion to calcium aluminum sulphate. The antibacterial includes nickel, cobalt, zinc, chrome, cadmium, lead, arsenic, or copper.
Patent KR-20120103373-A (KR)
Title: Method of job experience of baker and cook in virtual world
Inventor: PARK HYOUNG KI
IPC: G06Q50/10
Filed: 2011-03-11
Abstract: PURPOSE: A method for experiencing a baking and cooking job in a virtual world is provided to enable a user to experience the baking and cooking job while having a sense of realism, immersion, and high interest in the virtual world free from constraints time and space. CONSTITUTION: A user terminal is connected to a virtual world service server(S100). The user terminal selects an experience process from baking and confectionary(S110). An event purchasing an item in a store of a virtual world is performed(S120). When a first event is completed, virtual food is manufactured in order by using a GUI(Graphic User Interface)(S130). [Reference numerals] (AA) Start; (BB) End; (S100) Entering a virtual world; (S110) Conversation pop-up between an NPC and an avatar in a store; (S120) Executing a first event(ingrediant purchase); (S130) Executing a second event(cooking start); (S140) Executing a third event(dispaly)
Patent KR-20120105818-A (KR)
Title: Information input apparatus based events and method thereof
Inventor: RYOO DONG WAN
IPC: G06F3/03
Filed: 2011-03-16
Abstract: PURPOSE: An information input apparatus based on events and a method thereof are provided to generate a left/right click event and to prevent input unintended by a user by calculating coordinate displacement according to the motion of a hand. CONSTITUTION: An inertia sensor(10) senses the rolling of a wrist and motion of a hand. An event determiner(20) determines an event through the rolling of the wrist. A coordinate calculator(30) calculates moving displacement toward the motion of the hand. A controller(40) transmits a coordinate for a control command and the moving displacement. The inertia sensor measures a tilt, an acceleration and an angular velocity. [Reference numerals] (10) Inertia sensor; (20) Event determiner; (30) Coordinate calculator; (40) Controller; (50) Feedback generator; (60) Communication unit; (70) Data storing unit; (80) Electronic device
Patent KR-20110104916-A (KR)
Inventor: HUA XIA
IPC: G01N21/27
Filed: 2011-03-17
Abstract: 수소 순도 감지 시스템(50)은 광섬유 케이블(56)을 통해 광 신호를 제공하는 광원(52)을 포함한다. 수소 순도 센서(60)는 광 신호를 수신하기 위해 고굴절률 재료(124) 및 저굴절률 재료(126)의 다층 나노구조 막(122)을 포함하는 시스템에 제공된다. 이 시스템은, 수소 순도 센서로부터 반사 광 신호를 수신하는 광검출기(62) 및 반사 광 신호를 분석하기 위해 광검출기에 커플링된 프로세싱 회로(68)를 포함한다.
Patent KR-20120108489-A (KR)
Title: Biodiesel production process using fat and oils separated from food waste
Inventor: YANG YUNG HUN
IPC: C12P7/64
Filed: 2011-03-24
Abstract: PURPOSE: A method for producing biodiesel from fat collected from organic waste using microorganism is provided to recycle food waste. CONSTITUTION: A method for producing biodiesel comprises: a step of pulverizing organic waste and adding solvent to isolate fat ingredients from organic waste; a step of culturing Rhodococcus strain using the fat ingredients as a substrate; a step of isolating lipid from the culture liquid; and a step of chemical reaction of the lipid. The organic waste is food waste, livestock waste, or sludge. [Reference numerals] (AA) Bioenergy production; (BB) Food waste; (CC) Isolation; (DD) Precipitation and purification; (EE) Solvent injection; (FF) Phase isolation; (GG) Fat; (HH) Microorganism fermentation; (II) Fat-removed waste
Patent KR-20120111227-A (KR)
Inventor: HWANG SYN HYO
IPC: G06Q50/20
Filed: 2011-03-31
Abstract: PURPOSE: An online English learning system is provided to increase interest in learning by introducing a test for competition between a learner and other learners. CONSTITUTION: Learner computers(60) display a student room entering screen. The student room entering screen includes a window for selecting a class which a student can enters. The student room entering screen includes a password input window and an entering window. An instructor computer(40) displays a screen of a connected learner. A window is displayed on the bottom of the learner screen. A list of connected learners is displayed on the window. [Reference numerals] (12) Learning management DB; (14) Course information DB; (30) Internet network; (40) Instructor computer; (50) System computer; (60) Learner computer; (70) DB server; (80) Web server; (90) Content server
Patent KR-20120116280-A (KR)
Title: 3-dimensional display having integral touch sensor and method for manufacturing the same
Inventor: BAE JIN HO
IPC: G02B27/22
Filed: 2011-04-12
Abstract: PURPOSE: A touch sensor-integrated 3D display and a manufacturing method thereof are provided to implement a flat-panel 3D display including a touch sensor by forming the touch sensor on a binocular parallax implementing unit. CONSTITUTION: A binocular parallax implementing unit(110) is laminated on a side of a display unit. First electrode lines(202) are directly formed on the binocular parallax implementing unit and extended in a first direction. An insulation pattern(206) covers a part of the first electrode lines. Second electrode lines(204) cover the insulation pattern and are extended in a second direction. A first and a second bus bars(208,210) are connected to the first and the second electrode lines and laminated on the binocular parallax implementing unit. A cover sheet(214) is laminated on the binocular parallax implementing unit through an adhesion layer.
Patent KR-20120122060-A (KR)
Title: Apparatus for controlling rotation speed of correction bevice and method of controlling therefor
IPC: B21D1/02
Filed: 2011-04-28
Abstract: PURPOSE: A device and a method for controlling the RPM of a correcting unit are provided to maintain similar rotation speed of upper and lower correcting rolls and thus to prevent the deviation of a material from the correcting rolls. CONSTITUTION: A device for controlling the RPM of a correcting unit comprises a drive motor(30) which rotates upper and lower correcting rolls(1,2) of a correcting unit, a control unit(10) which is connected to the drive motor and controls the rotation of the drive motor through current control including comparison between a predetermined current value and a measured current value, and a current sensor(20) which is installed between the control unit and the drive motor and measures current applied to the drive motor. [Reference numerals] (10) Control unit; (20) Drive motor; (30) Current sensor
Patent KR-20110139096-A (KR)
Title: Flow passage switching apparatus, processing apparatus, flow passage switching method, processing method and storage medium
Inventor: OGATA NOBUHIRO
IPC: H01L21/302
Filed: 2011-04-29
Abstract: PURPOSE: A flow passage switching apparatus, a processing apparatus, a flow passage switching method, processing method and a storage medium are provided to reduce the number of a driving apparatus for changing a flow route by changing the flow route in only a rotary driving unit. CONSTITUTION: In a flow passage switching apparatus, a processing apparatus, a flow passage switching method, processing method and a storage medium, connection ports(51a~51c) are opened along the longitudinal direction of an outer tube(51). The connection ports are connected to the connection flow rate respectively. A rotary container(53) is inserted into the outer tube to be rotatable. A plurality of opening parts(53a~53c) are installed in the plural connection ports of the outer tube respectively. A rotary driving unit rotates the rotary container.
Patent KR-20120124219-A (KR)
Title: Surveillance system wherein video signals are synchronized
IPC: H04N7/18
Filed: 2011-05-03
Abstract: PURPOSE: A monitoring system in which video signals are synchronized is provided to reduce operation time from an input point to a monitoring camera operation completion point in case a common command is inputted to a host device. CONSTITUTION: In case a host device(2) transmits a common communication signal to monitoring cameras, the host device synchronizes video signals of the monitoring cameras. The host device transmits the common communication signal from predetermined horizontal cycles of a VBI(Vertical Blank Interval) to the monitoring cameras.
Patent KR-20120127787-A (KR)
Title: The rear monitering device of the car for rear seat and Method thereof
IPC: B60R1/00
Filed: 2011-05-16
Abstract: PURPOSE: A rear side monitoring apparatus for backset of a vehicle and a method thereof are provided to confirm a rear side state through a display device and prevent accident by getting off the vehicle. CONSTITUTION: A display device(10) is installed in a chassis between a rear door and a front door in a folding type. If a user selects a switch(70), a control unit(30) controls the driving of the display device. The control unit displays an image of a rear side of a vehicle which is photographed by a camera unit(40) on a display device. A driving unit(20) folds or unfolds the display device with control of the control unit. [Reference numerals] (10) Display device; (20) Driving unit; (30) Control unit; (40) Camera unit; (50) Alarm device; (60) Ultrasonic waves perception unit; (70) Switch
Patent KR-20120128230-A (KR)
Title: Hinge device
IPC: F16C11/04
Filed: 2011-05-17
Abstract: PURPOSE: A rotating hinge device is provided to rotate without noise and dust caused by friction, thereby being utilized for a clean place. CONSTITUTION: A rotating hinge device comprises a body housing(110), a first solenoid block(120), a first permanent magnet block(130), a barrel type floating(140), a second permanent magnet block(160), a barrel type floating member(140), and a second solenoid block(150). The first solenoid block is mounted in the lower part of the body housing. The first permanent magnet block is floating-arranged on the top of the first solenoid block. The first permanent magnet block is fixed to the lower part of the barrel type floating member. The second permanent magnet blocks are arranged in the upper outer circumference of the floating member to a radial direction. The second solenoid blocks are fixed to a position surrounding the second permanent magnet blocks correspondently to the body housing.
Patent KR-20120128903-A (KR)
Title: Method for assembling manual transmission and manual transmission using the same
IPC: F16H63/30
Filed: 2011-05-18
Abstract: PURPOSE: A manual transmission and an assembling method thereof are provided to improve quality by preventing spacer flow between a first level speed gear and a synchronizer-assembly. CONSTITUTION: A manual transmission places a spacer on the upper end of a first level speed gear(20). A hub and sleeve assembly(41) concavely forms a spacer flow prevention unit on a boss surface. A synchronizer-assembly is formed by assembling a synchronizer ring. The manual transmission mounts the synchronizer-assembly on the upper end of the spacer in order to insert the spacer into the spacer flow prevention unit. The first level speed gear and the synchronizer-assembly are separated from a jig. The first level speed gear and the synchronizer-assembly are pressed and fitted on the outer circumference of an output shaft. [Reference numerals] (AA) Stepped pulley
Patent KR-20120010118-A (KR)
Title: Method manufacturing micro-chamber plate for analysis and micro-chamber plate with samples, micro-chamber plate for analysis and apparatus set manufacturing micro-chamber plate with samples
Inventor: PARK HAN OH
IPC: G01N33/48
Filed: 2011-06-01
Abstract: PURPOSE: A micro chamber plate is provided to prevent measuring error of an optical measuring unit due to contamination and to reduce time for analysis. CONSTITUTION: A method for manufacturing a sample-containing micro chamber plate comprises: a step of placing a micro chamber plate for sample injection for placing the micro chamber plate into a micro chamber plate receptor(S20); a step of placing a micro chamber plate receptor cover to cover the upper opening of the micro chamber plate receptor(S30); a step of inputting the micro chamber plate receptor into a centrifuge and applying centrifugal force; and a step of injecting a sample solution to the micro chamber plate(S40).
Patent KR-20120134982-A (KR)
Title: Semiconductor light emitting device and method for menufacturing the same
Inventor: SUH DUC KIL
IPC: H01L33/22
Filed: 2011-06-15
Abstract: PURPOSE: A semiconductor light emitting device and a manufacturing method thereof are provided to improve a light extraction efficiency by forming a vertical groove on the side surface of a light emitting structure. CONSTITUTION: A light emitting structure(11) is laminated on a sapphire substrate(10). The light emitting structure includes an active layer(112) generating light. The light emitting structure is formed into multiple nitride epi-layers. The upper surface of the sapphire substrate is formed into an unevenness pattern. The side surface of the light emitting structure includes a vertical groove.